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crypto: hisilicon/sec2 - Update IV and MAC operation 

We have updated the operation method of IV and MAC address
to prepare for pbuf patch and fixed coding style.

Signed-off-by: Longfang Liu <liulongfang@huawei.com>
Signed-off-by: Zaibo Xu <xuzaibo@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Longfang Liu 2020-03-05 10:06:24 +08:00 committed by Herbert Xu
parent 8824bc5ed1
commit 2514f5595d
2 changed files with 44 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/crypto/hisilicon/sec2/sec.h
View File

@ -23,6 +23,8 @@ struct sec_cipher_req {
dma_addr_t c_in_dma;
struct hisi_acc_hw_sgl *c_out;
dma_addr_t c_out_dma;
u8 *c_ivin;
dma_addr_t c_ivin_dma;
struct skcipher_request *sk_req;
u32 c_len;
bool encrypt;

75
drivers/crypto/hisilicon/sec2/sec_crypto.c
View File

@ -46,6 +46,7 @@
#define SEC_CIPHER_AUTH 0xfe
#define SEC_AUTH_CIPHER 0x1
#define SEC_MAX_MAC_LEN 64
#define SEC_MAX_AAD_LEN 65535
#define SEC_TOTAL_MAC_SZ (SEC_MAX_MAC_LEN * QM_Q_DEPTH)
#define SEC_SQE_LEN_RATE 4
#define SEC_SQE_CFLAG 2
@ -110,12 +111,12 @@ static void sec_free_req_id(struct sec_req *req)
mutex_unlock(&qp_ctx->req_lock);
}
static int sec_aead_verify(struct sec_req *req, struct sec_qp_ctx *qp_ctx)
static int sec_aead_verify(struct sec_req *req)
{
struct aead_request *aead_req = req->aead_req.aead_req;
struct crypto_aead *tfm = crypto_aead_reqtfm(aead_req);
u8 *mac_out = qp_ctx->res[req->req_id].out_mac;
size_t authsize = crypto_aead_authsize(tfm);
u8 *mac_out = req->aead_req.out_mac;
u8 *mac = mac_out + SEC_MAX_MAC_LEN;
struct scatterlist *sgl = aead_req->src;
size_t sz;
@ -163,7 +164,7 @@ static void sec_req_cb(struct hisi_qp *qp, void *resp)
}
if (ctx->alg_type == SEC_AEAD && !req->c_req.encrypt)
err = sec_aead_verify(req, qp_ctx);
err = sec_aead_verify(req);
atomic64_inc(&ctx->sec->debug.dfx.recv_cnt);
@ -259,11 +260,11 @@ static int sec_alg_resource_alloc(struct sec_ctx *ctx,
if (ctx->alg_type == SEC_AEAD) {
ret = sec_alloc_mac_resource(dev, res);
if (ret)
goto get_fail;
goto alloc_fail;
}
return 0;
get_fail:
alloc_fail:
sec_free_civ_resource(dev, res);
return ret;
@ -590,11 +591,21 @@ GEN_SEC_SETKEY_FUNC(3des_cbc, SEC_CALG_3DES, SEC_CMODE_CBC)
GEN_SEC_SETKEY_FUNC(sm4_xts, SEC_CALG_SM4, SEC_CMODE_XTS)
GEN_SEC_SETKEY_FUNC(sm4_cbc, SEC_CALG_SM4, SEC_CMODE_CBC)
static int sec_cipher_map(struct device *dev, struct sec_req *req,
static int sec_cipher_map(struct sec_ctx *ctx, struct sec_req *req,
struct scatterlist *src, struct scatterlist *dst)
{
struct sec_cipher_req *c_req = &req->c_req;
struct sec_aead_req *a_req = &req->aead_req;
struct sec_qp_ctx *qp_ctx = req->qp_ctx;
struct sec_alg_res *res = &qp_ctx->res[req->req_id];
struct device *dev = SEC_CTX_DEV(ctx);
c_req->c_ivin = res->c_ivin;
c_req->c_ivin_dma = res->c_ivin_dma;
if (ctx->alg_type == SEC_AEAD) {
a_req->out_mac = res->out_mac;
a_req->out_mac_dma = res->out_mac_dma;
}
c_req->c_in = hisi_acc_sg_buf_map_to_hw_sgl(dev, src,
qp_ctx->c_in_pool,
@ -625,29 +636,30 @@ static int sec_cipher_map(struct device *dev, struct sec_req *req,
return 0;
}
static void sec_cipher_unmap(struct device *dev, struct sec_cipher_req *req,
static void sec_cipher_unmap(struct sec_ctx *ctx, struct sec_req *req,
struct scatterlist *src, struct scatterlist *dst)
{
if (dst != src)
hisi_acc_sg_buf_unmap(dev, src, req->c_in);
struct sec_cipher_req *c_req = &req->c_req;
struct device *dev = SEC_CTX_DEV(ctx);
hisi_acc_sg_buf_unmap(dev, dst, req->c_out);
if (dst != src)
hisi_acc_sg_buf_unmap(dev, src, c_req->c_in);
hisi_acc_sg_buf_unmap(dev, dst, c_req->c_out);
}
static int sec_skcipher_sgl_map(struct sec_ctx *ctx, struct sec_req *req)
{
struct skcipher_request *sq = req->c_req.sk_req;
return sec_cipher_map(SEC_CTX_DEV(ctx), req, sq->src, sq->dst);
return sec_cipher_map(ctx, req, sq->src, sq->dst);
}
static void sec_skcipher_sgl_unmap(struct sec_ctx *ctx, struct sec_req *req)
{
struct device *dev = SEC_CTX_DEV(ctx);
struct sec_cipher_req *c_req = &req->c_req;
struct skcipher_request *sk_req = c_req->sk_req;
struct skcipher_request *sq = req->c_req.sk_req;
sec_cipher_unmap(dev, c_req, sk_req->src, sk_req->dst);
sec_cipher_unmap(ctx, req, sq->src, sq->dst);
}
static int sec_aead_aes_set_key(struct sec_cipher_ctx *c_ctx,
@ -758,16 +770,14 @@ static int sec_aead_sgl_map(struct sec_ctx *ctx, struct sec_req *req)
{
struct aead_request *aq = req->aead_req.aead_req;
return sec_cipher_map(SEC_CTX_DEV(ctx), req, aq->src, aq->dst);
return sec_cipher_map(ctx, req, aq->src, aq->dst);
}
static void sec_aead_sgl_unmap(struct sec_ctx *ctx, struct sec_req *req)
{
struct device *dev = SEC_CTX_DEV(ctx);
struct sec_cipher_req *cq = &req->c_req;
struct aead_request *aq = req->aead_req.aead_req;
sec_cipher_unmap(dev, cq, aq->src, aq->dst);
sec_cipher_unmap(ctx, req, aq->src, aq->dst);
}
static int sec_request_transfer(struct sec_ctx *ctx, struct sec_req *req)
@ -800,9 +810,9 @@ static void sec_request_untransfer(struct sec_ctx *ctx, struct sec_req *req)
static void sec_skcipher_copy_iv(struct sec_ctx *ctx, struct sec_req *req)
{
struct skcipher_request *sk_req = req->c_req.sk_req;
u8 *c_ivin = req->qp_ctx->res[req->req_id].c_ivin;
struct sec_cipher_req *c_req = &req->c_req;
memcpy(c_ivin, sk_req->iv, ctx->c_ctx.ivsize);
memcpy(c_req->c_ivin, sk_req->iv, ctx->c_ctx.ivsize);
}
static int sec_skcipher_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
@ -817,8 +827,7 @@ static int sec_skcipher_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
memset(sec_sqe, 0, sizeof(struct sec_sqe));
sec_sqe->type2.c_key_addr = cpu_to_le64(c_ctx->c_key_dma);
sec_sqe->type2.c_ivin_addr =
cpu_to_le64(req->qp_ctx->res[req->req_id].c_ivin_dma);
sec_sqe->type2.c_ivin_addr = cpu_to_le64(c_req->c_ivin_dma);
sec_sqe->type2.data_src_addr = cpu_to_le64(c_req->c_in_dma);
sec_sqe->type2.data_dst_addr = cpu_to_le64(c_req->c_out_dma);
@ -903,9 +912,9 @@ static void sec_skcipher_callback(struct sec_ctx *ctx, struct sec_req *req,
static void sec_aead_copy_iv(struct sec_ctx *ctx, struct sec_req *req)
{
struct aead_request *aead_req = req->aead_req.aead_req;
u8 *c_ivin = req->qp_ctx->res[req->req_id].c_ivin;
struct sec_cipher_req *c_req = &req->c_req;
memcpy(c_ivin, aead_req->iv, ctx->c_ctx.ivsize);
memcpy(c_req->c_ivin, aead_req->iv, ctx->c_ctx.ivsize);
}
static void sec_auth_bd_fill_ex(struct sec_auth_ctx *ctx, int dir,
@ -938,8 +947,7 @@ static void sec_auth_bd_fill_ex(struct sec_auth_ctx *ctx, int dir,
sec_sqe->type2.cipher_src_offset = cpu_to_le16((u16)aq->assoclen);
sec_sqe->type2.mac_addr =
cpu_to_le64(req->qp_ctx->res[req->req_id].out_mac_dma);
sec_sqe->type2.mac_addr = cpu_to_le64(a_req->out_mac_dma);
}
static int sec_aead_bd_fill(struct sec_ctx *ctx, struct sec_req *req)
@ -963,6 +971,7 @@ static void sec_aead_callback(struct sec_ctx *c, struct sec_req *req, int err)
{
struct aead_request *a_req = req->aead_req.aead_req;
struct crypto_aead *tfm = crypto_aead_reqtfm(a_req);
struct sec_aead_req *aead_req = &req->aead_req;
struct sec_cipher_req *c_req = &req->c_req;
size_t authsize = crypto_aead_authsize(tfm);
struct sec_qp_ctx *qp_ctx = req->qp_ctx;
@ -978,7 +987,7 @@ static void sec_aead_callback(struct sec_ctx *c, struct sec_req *req, int err)
struct scatterlist *sgl = a_req->dst;
sz = sg_pcopy_from_buffer(sgl, sg_nents(sgl),
qp_ctx->res[req->req_id].out_mac,
aead_req->out_mac,
authsize, a_req->cryptlen +
a_req->assoclen);
@ -1030,6 +1039,7 @@ static int sec_request_init(struct sec_ctx *ctx, struct sec_req *req)
static int sec_process(struct sec_ctx *ctx, struct sec_req *req)
{
struct sec_cipher_req *c_req = &req->c_req;
int ret;
ret = sec_request_init(ctx, req);
@ -1056,12 +1066,10 @@ static int sec_process(struct sec_ctx *ctx, struct sec_req *req)
/* As failing, restore the IV from user */
if (ctx->c_ctx.c_mode == SEC_CMODE_CBC && !req->c_req.encrypt) {
if (ctx->alg_type == SEC_SKCIPHER)
memcpy(req->c_req.sk_req->iv,
req->qp_ctx->res[req->req_id].c_ivin,
memcpy(req->c_req.sk_req->iv, c_req->c_ivin,
ctx->c_ctx.ivsize);
else
memcpy(req->aead_req.aead_req->iv,
req->qp_ctx->res[req->req_id].c_ivin,
memcpy(req->aead_req.aead_req->iv, c_req->c_ivin,
ctx->c_ctx.ivsize);
}
@ -1320,7 +1328,8 @@ static int sec_aead_param_check(struct sec_ctx *ctx, struct sec_req *sreq)
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
size_t authsize = crypto_aead_authsize(tfm);
if (unlikely(!req->src || !req->dst || !req->cryptlen)) {
if (unlikely(!req->src || !req->dst || !req->cryptlen ||
req->assoclen > SEC_MAX_AAD_LEN)) {
dev_err(SEC_CTX_DEV(ctx), "aead input param error!\n");
return -EINVAL;
}